Plumbing and heating contractors · Illinois

Nelson Carlson Mechanical

Rockford, IL · ~47 workers · 7 years of OSHA Injury Tracking Application data.

B
Good Safety Record
2.1
Avg TCR
2.8
Industry avg
0
Fatalities
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The verdict

Nelson Carlson Mechanical runs at 76% of its industry's injury rate - safer than the typical Plumbing and heating contractors workplace, earning a grade B.

Nelson Carlson Mechanical: 2.1 TCR = 76% of Plumbing and heating contractors BLS 2.8 · 7y Form 300A (see methodology below)

Nelson Carlson Mechanical safety composite

Nelson Carlson Mechanical scores strongest on dart rate (safer than 80% of same-industry peers) and weakest on fatalities (safer than 51%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

C

67/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 2.13 per 100 workers

Safer than 66% of industry peers

DART rate
B 0 per 100 workers

Safer than 80% of industry peers

Fatalities
D 0

Safer than 51% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

TCR Δ

−2.2

2016→2023

Nelson Carlson Mechanical injury rate improved

Nelson Carlson Mechanical's TCR fell 2.2 from 2.2 in 2016 to 0.0 in 2023. Peak filing year was 2021 at 5.3 TCR. In 2023, DART was 0× this establishment's average TCR (severity share of cases).

2016=2.2 · 2017=0.0 · 2019=2.3 · 2020=0.0 · 2021=5.3 · 2022=5.1 · 2023=0.0

OSHA ITA Form 300A scorecard

Establishment book 238220 · Rockford, IL AT/BELOW-IND · SMALL

Grade B · TCR 2.1 · 76% of ind

  • DART 0.0 DART
  • RANK #110/230
  • PHOTO AMERICAN MECHANICAL …
  • BOOK 7y book
  • INJ 6 inj
  • SIZE ~47 FTE

Nearest TCR peer: AMERICAN MECHANICAL CONTRACTORS (0.0 TCR gap)

Read with this employer → · Industry book → · Illinois employers → · Look up another →

Nelson Carlson Mechanical in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Nelson Carlson Mechanical averages 2.1 TCR (76% of the Plumbing and heating contractors BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Nelson Carlson Mechanical TCR series: 2016=2.2 · 2017=0 · 2019=2.3 · 2020=0 · 2021=5.3 · 2022=5.1 · 2023=0 · BLS 2.8

Where Nelson Carlson Mechanical falls in its industry

5,793 Plumbing and heating contracto establishments

Safer than 66% of graded establishments in this industry, whose median TCR is 3.3.

More dangerous than peersSafer than peers

Narrower to Illinois alone (the establishments it most directly competes with for workers and contracts): ranked #110 safest of 230 Plumbing and heating contracto employers in Illinois.

Nelson Carlson Mechanical (47 employees, TCR 2.1) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 050100150200250 05101520 Average employees Total Case Rate Nelson Carlson Mechanical
Nelson Carlson Mechanical (47 employees, TCR 2.1) among 29 same-industry peers, split at the industry median of 60 employees and a TCR of 3.3

Nelson Carlson Mechanical has fewer employees than the Plumbing and heating contractors median and a lower injury rate than the industry's median TCR of 3.3. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2023 0.0 0.0 0 0 0
2022 5.1 2.5 2 0 0
2021 5.3 5.3 2 0 0
2020 0.0 0.0 0 0 0
2019 2.3 2.3 1 0 0
2017 0.0 0.0 0 0 0
2016 2.2 0.0 1 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

238220 · IL · Rockford

5,793 Plumbing and heating contractors employers nationwide with a credible TCR · 22,804 rated employers in Illinois with headcount on file · 405 employers in Rockford, IL · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR AMERICAN MECHANICAL CONTRACTORS 2.1 TCR
NAICS-TCR Hiller Birmingham 2.1 TCR
NAICS-TCR Carrier Commercial Services (Ft Lauderdale) 2.1 TCR
NAICS-TCR Kent Island Mechanical, Inc 2.1 TCR
STATE-SIZE 1987-Jerseyville, IL (Monsanto Co.) 47 FTE
STATE-SIZE Stonington, IL-Mfg 47 FTE
STATE-SIZE Prairie Power, Inc. 47 FTE
STATE-SIZE AMEREN ILLINOIS - Distribution Operating - Decatur 47 FTE
CITY-NEAR ILRKF - ROCKFORD AIR HUB 2,634 FTE
CITY-NEAR Swedish American Hospital - 4800 2,629 FTE
CITY-NEAR PCI Pharma Services Rockford 2,175 FTE
CITY-NEAR SwedishAmerican Hospital 1,855 FTE
NAT-TCR Company Office 2.1 TCR
NAT-TCR First Student Inc 2.1 TCR
NAT-TCR Port Saint Joe: 502 Cecil G 2.1 TCR
NAT-TCR Advanced Data Storage 2.1 TCR
NAT-SIZE Baton Rouge Office 47 FTE
NAT-SIZE Gi-Ro Dry Cleaners, Inc 47 FTE
NAT-SIZE Mechanicsville Specialty Care 47 FTE
NAT-SIZE Hugh H. Branch, Inc. 47 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2023, 2022, 2021, 2020, 2019, 2017, 2016. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.